Removing Crit from the game (please actually read before having thoughts about my intent)
This is not a salt post about Yasuo, Tryndamere, or just crit in general. I honestly find crit to be fairly balanced by probability but on occasion it can sway a fight in favor of one person or another when statistically the fight should have gone the other way. Here is how I would go about it as a designer. I would change it so all crit chance is changed with halved values of increased basic attack damage.
Crit runes -> increased basic attack damage
+5% basic attack damage
+10% basic attack damage
+70 Attack damage +10% basic attack damage +10% CDR
Unique passive - gain cdr equal to 10% of your bonus AD from other items up to 20% at 200 bonus AD.
Unique passive - gain mana equal to 5% of the physical damage you deal.
Changed to 
+100 Attack damage
Unique passive - Basic attacks deal 50% more damage (multiplicative with all other bonuses)
+45% attack speed +15% Basic attack damage +5% movement speed
Same passives
+30% attack speed +15% Basic attack damage +5% movement speed
Same passives
+40% attack speed
+15% Basic attack damage
+7% movement speed
Unique passive - wind's fury - fire up to 2 bolts to attack nearby enemies when you attack which deal 25% of your basic attack damage and apply on hit effects
Passive - deal 15 bonus damage on hit
+35% attack speed
+15% basic attack damage
+5% movement speed
Passive - Energized
Unique passive - Shiv lightning - when full energized, your next basic attack does 50-120 bonus magic damage to up to 5 nearby enemies. Bonus basic attack damage applies to Shiv lightning.
+15% attack speed
+10% auto attack damage
Unique passive - +5% movement speed
60 armor 500 health -10% effect of bonus basic attack damage from the attacker
Unique passive - cold steel - When hit by basic attack's the attacker's attack speed is reduced by 15%
Unique active - Reduce bonus attack damage stats on all nearby enemies by 50% and slow them by 35% for 4 seconds. (90 second cd)
Passive - Tryndamere gains 8 Fury each time he lands a basic attack, and 10 Fury each time he kills an enemy. After not dealing or receiving damage for 8 seconds, Tryndamere loses 5 Fury per second.
Tryndamere's basic attacks deal 0.2% more damage per point of fury that he has up to 20% at 100 fury.
Passive: intent - all bonuses to Yasuo's basic attack damage are doubled (up to 50%) but his basic attacks and Steel Tempest respectively deal 80% damage.
This means that if he builds a Phantom Dancer first item, he will get +30% basic attack damage and if he builds Statikk Shiv second item it will give him +20% basic attack damage because he has reached the 50% limit. Further +basic attack damage items will get their normal value after this.
Only including the relevant stuff here so we don't get a novel.
Passive - instead of critical striking on every fourth hit, he will deal 100% increased damage. This bonus multiplies with +basic attack damage.
His basic attacks do 25% reduced damage.
He gains 2-40% bonus attack damage based on level
He gains half of his bonus basic attack damage as attack damage.
He gains 25% bonus attack damage per 100% attack speed.
Passive - attacks against frosted enemies deal 10% more damage stacking multiplicative with bonus basic attack damage.
W - base damage is doubled to 40/70/100/130/160 and it gets full effect from bonus basic attack damage
All other champion abilities that grant critical strike chance instead grant +100% bonus attack damage additively with items.
These include 
.
Abilities that can crit like 
instead have bonus basic attack damage apply to those abilities.
We now have
with
Currently, the same build would give him 80% crit chance, 250% crit damage, and 145 AD which would give him 482 damage per auto attack on average. If he gets lucky with all crits it would be 603 damage per hit.
